矿床成矿规律与矿产预测

Metallogenic regularity and mineral prediction of ore deposits

分析矿床成矿规律,依据矿床的空间分布特征、成矿时间的演化规律、成矿控制因素、找矿标志等判断矿床成因。初步判定该铅锌矿区成矿活动与岩浆关系密切,矿化集中分布于花岗斑岩与塔克那地层接触带及其附近围岩地层中、浅成相小侵入体内部,成为矿化的主导因素。因此,初步认为矿床成因属岩浆热液型及接触交代型。依据成矿条件及矿床类型预测出矿区地质勘探靶区。

Based on the analysis of the metallogenic regularity of the deposit,the genesis of the deposit is judged according to the spatial distribution characteristics of the deposit,the evolution of metallogenic time,the controlling factors of mineralization and the beauty of prospecting criteria.It is preliminarily determined that the ore-forming activities of the Qianci ore area are closely related to magma,and the mineralization is concentrated in the fusion zone of huatu porphyry and Takna formation and the small intrusions of middle and shallow facies of surrounding rock strata,which is the leading factor of mineralization.Therefore,the genesis of the deposit is considered to be magmatic hydrothermal type and contact metasomatism type.According to the metallogenic conditions and deposit types,the geological exploration target area of the mining area is predicted.